Tank for gasolene-stoves.



No. 774,644. PATENTED NOV. 8, 1904 A; J. BLAGKFORD. TANK FOR GASOLENE STOVES.

APPLICATION FILED DEGJO, 1902. N0 MODEL.

5] mm H for,

UNTTED STATES Patented November 8, 1904.

PATENT Tricia.

ATWELL J. BLACKFORD, OF CLEVELAND, OHIO, ASSIGNOR TO AMERICAN STOVE COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEIV JERSEY.

TANK FOR GASOLENE-STOVES- SPECIFICATION forming part of Letters Patent No. 774,644, dated November 8, 1904. Application filed December 10,1902. Serial No, 134,674. (No model.)

To (tZZ whmn it may concern.-

Be it known that I, ATWEL J. BLACKFORD, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented new and useful Improvements in Tanks for Gasolene-Stoves, of which the following is a specification.

My invention relates to an improvement in tanks for gasolene-stoves, the object of which is to produce a safety-tank so constructed as to prevent the flooding and overflowing of the burners of gasolenestoves because of careless or reckless or ignorant operation, as hereinafter fully explained.

The accompanying drawing represents a vertical central sectional view of a tank with my invention applied thereto.

Serious accidents in the way of fires sometimes occur in the use of gasolene-stoves because of forgetfulness, carelessness, or igno rance on the part of the operator in either filling the tank while the burners are lighted, thus endangering the operator, as is well understood by those skilled in the art, and, furthermore, by filling the tank when the valve or valves controlling the burners are open, in which event the gasolene flows from the tank to the burners, floods and overflows the burners and evaporates, causing a vapor settling to the floor, and in the event of there being a fire or a light in the room serious fires and accidents thereby happen.

The object of my invention is to so construct the gasolene-tank that it is impossible to fill it without first withdrawing the gasolene from the burners and causing them to go out and to prevent any flow of the gasolene to the burners while the tank is being filled and to prevent the flow of gasolene while being filled from the tank to the burners should the valves happen to have been left open, and thus prevent the flooding and overflowing of the burners and the consequent danger, and, further, to so construct the parts that the filling-orifice can be closed without operating the part which controls the flow of the gasolene from the tank to the burners, whereby a careless, forgetful, or ignorant operator cannot fill the tank and then close the fillingopening without so arranging the controlling members that'the gasolene cannot possibly flow to the burners and requiring another operation separate from the closing of the filling-orifice in order to permit the gasolene to flow to the burners for operation. In the accompanying drawing I disclose one specific way of accomplishing this object, though I desirev it to be understood that the details may be varied and the object accomplished without departing from the spirit and scope of my invention.

Referring now to the drawing, 1 indicates a tank, which may be of the construction here shown or of any other desired form. The bottom of this tank is provided with an out let connection 2, and this connection 2 is constructed at its lower end to be connected with the feed-pipe 4, the means here shown consisting of an internally-screw-threaded socket 3. The tank at its upper portion is provided with a suitable filling-orifice 5, and this filling-orifice is provided with a removable cap or cover 6. As here shown, the filling-orifice is'provided with a funnel 7, and the cap or cover is arranged in releation to the funnel. Also in the form of movable cap or cover 6 here shown it is hinged at a suitable point as, for instance, 8,and adjusted to be swung open, as indicated in dotted lines.

The member 2, as here shown, is constructed of cast metal, though it may be formed of sheet, and comprises a relatively elongated preferably cylindrical portion 9, which may be aptly termed a pump-barrel, and movable in this pump-barrel is a suitable plunger 10. This plunger 10 may be constructed of any desired material, but preferably is formed of cork and is firmly attached to the lower end of a vertically-arranged and verticallymovable rod 11. The upper end of this rod passes through a removable cap 12, and this cap 12 closes an opening let. The opening 14: is preferably of a size larger than the pumpbarrel 9, whereby the plunger 10 may be passed therethrough.

The movable cap or cover 6 is operatively connected with the vertically-movable rod 11, and hence is operatively connected with the plunger 10. The specific means here shown l consists of a bar or rod 15, which has its l upper end loosely connected with the cap or cover 6 at the point 16 and its lower end doubled in essentially U shape, as shown at 17, and passes around the aforesaid rod 11. Suitably connected to the rod 11 is a shoulder or 1 washer 18, with which the-doubled portion 17 l of the rod 15 is adapted to engage. W hen the cap or cover 6 is moved for the purpose of opening the filling-orifice 5, as shown in dotted lines, it lifts the rod 11 through the medium of the bar 15 and also raises the plunger 10 in its barrel 9, as indicated in dotted lines. Connected with the rod 11 is a suitable stop 19, adapted to engage the under l side of the removable cap 12 for the purpose of limiting the upward movement of the rod 11 and to prevent it from being moved sufficiently upward to displace the plunger 10 from its barrel 9.

The plunger 10 fits the barrel 9 sufiiciently snug to act as the plunger of a pump, whereby when the cap or cover 6 is open and the plunger moved upward the gasolene will be drawn from the burners by the movement of the plunger and will cause the burner to be extinguished or go out. The lower end of the barrel 9 is so constructed that when the plunger 10 is in its lowest position, as shown in dotted lines, the gasolene will flow from the tank 1 around the plunger and into the feed-pipe a. As here shown, this is accomplished by providing an enlargement 20 at the lower portion of the pump-barrel 9,which will provide a passage around the plunger when it is in lowest position. It will be understood by those skilled in the art that other specific constructions may be provided, whereby when the plunger is lowered a passage for the gasolene will be provided differing from the specific construction herein shown, and I do not, therefore, desire to limit myself to the specific form of accomplishing this result herein shown and described.

In operation should the tank become empty, and hence the burners extinguished before the tank can again be filled, it is necessary to open the filling-orifice 5 by moving or lifting the cap or cover 6'. The opening of the fillingorifice automatically lifts the plunger 10, and thus closes communication between the tank 1 and the burners of the stove and will prevent the fiow of the gasolene from the tank to the burners, which would otherwise occur, and unless the operator has closed the valves to the burners the burners will be flooded and will overflow, causing gasolene-vapor in the room, which, as is well understood, is very dangerous. In this way it will be noted that a tank constucted as herein shown and de scribed provides against the careless, forgetful, or ignorant operator in filling the tank while the valves to the burner or burners are burners.

open, and thus prevent accidents from this cause. It willalso be noted that while the cap or cover 6 is operatively connected to the plunger through the medium of the rod 11 and the bar 15 when the cap is moved to open the cap or cover can be closed without affecting the position of the plunger, and hence without opening communication between the tank and the It will be observed that this provision prevents the operator from filling the tank and closing the filling-orifice and then permitting the flow of the gasolene to the burners. After the tank has been filled and before the burners can be again operated it is necessary for the operator to push downward upon the rod 11, and for this purpose a suitable knob orhandle 21 is provided. Hence should the burners be extinguished because of the emptying of the tank 1 and the tank filled the stove may be left in this condition for any period with the valves of the burners open without the flooding of the latter. When, however, it is desired to operate the burners, it will be necessary to push downward upon the rod 11, as before explained. Should the operator attempt to fill the tank while the burners are in operation, the opening of the filling-orifice in the manner before explained will cause the upward movement of the plunger 10, and this will draw or suck the gasolene in the feed-pipe from the burners and cause them to be extinguished. Before the burners can be again operated it will be necessary to depress the rod 11, as before explained, whereby the closing of the orifice 5 after the filling of the tank will not permit the flow of the gasolene to the burners, and hence will prevent the flooding and overflowing thereof.

A tank constructed to operate in the manner hereinbefore described is exceedingly effective in preventing the accidents occurring in the use of gasolene-stoves by carelessness and forgetfulness, as before explained, and will practically make the use of a gasolenestove safe even in the hands of careless, forgetful, or ignorant operators.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. Asafety-tank havingafilling-orifice, and an outlet-passage, a pump-barrel in communication with and establishing communication between the outlet-passage and the said tank, a plunger movable in said barrel, the plunger and the barrel constructed to establish communication between the outlet-opening and tank when moved in one position and to act as a pump and to close the said communication when moved in the other position, a hinged cover for the filling-orifice, a bar having one end pivotally connected with the cover, and its opposite end operatively connected with the said plunger.

2. A safety-tank having an outlet passageway, a pump-barrel connected therewith, a

piston Within said barrel, a vertically-disposed piston-rod carried by the piston, a filling-orifice located to one side of said rod, amovable cover for said orifice, an arm connected to said cover and loosely surrounding the piston-rod, and a stop carried by the piston-rod above the arm, whereby the raising of the cover draws the piston-rod upward but is adapted to be closed independent of the piston-rod.

3. Asafety-tank having a filling-orifice, an outlet-passage, a pump-barrel in communication with the outlet-opening, a plunger movable in said barrel, a hinged cover for the filling-orifice, a bar having one end pivotally connected to the cover and the opposite end adapted to raise the plunger but havingadoWnWard movement independent of the plunger.

4:. A safety-tank having a filling-orifice and outlet-passage, a pump-barrel in communication With the outlet-opening, a plunger movable in said barrel, a plunger-rod carried by the plunger and extending through the tank, a hinged cover for the filling-orifice, a bar having one end pivotally connected to said hinged cover, and the opposite end having an eye through Which the plunger-rod passes and a stop carried by the plunger-rod above said eye.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

ATWELL J. BLACKFORD.

Witnesses:

E. A. SCHNEIDER, HUGH J. MCBRIDE. 

